Making Use of Code Coverage | Epic Web Dev

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Author: Artem Zakharchenko
Full Title: Making Use of Code Coverage | Epic Web Dev
Category:#articles
Document Tags: testing
Summary: Code coverage is a metric that measures how much of a tested system is run during testing. It can be a useful tool for identifying missed logic, dead code, and gaining more context on what is being tested in an application. However, code coverage should not be the sole driver of testing efforts and should be approached with caution. It is important to prioritize intention-driven testing and understand the limitations and caveats of code coverage. Misuse of code coverage can lead to unreliable results and misguided testing strategies. Ultimately, code coverage should be used as a tool to aid in auditing software and finding problematic areas, rather than as a metric to drive testing decisions.
URL: https://www.epicweb.dev/making-use-of-code-coverage

The practical application of code coverage for the rest of us varies. It’s essential to understand that code coverage is a tool. It can be useful and it can also be harmful. It’s not a panacea and it mustn’t drive your entire testing effort. (View Highlight)
In my practice, adopting code coverage in companies degrades the development and testing experience more often than it improves it. That is in no way a fault of the tool but rather of the hands wielding it. (View Highlight)
We write tests to help us ship more reliable software faster. We get there by writing useful tests. The lines of code executed during a test don’t define the test’s usefulness. Code coverage may be helpful but it mustn’t be a single thing that decides your testing direction. (View Highlight)
Code coverage is a metric. It can be useful but its applications are niche enough to promote misusage, turning it into a harmful tool in the hands of those who chose to put too much trust in it. (View Highlight)

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